Preparation and Characterization of Microencapsulated Phase Change Coating

2012 ◽  
Vol 204-208 ◽  
pp. 4173-4176 ◽  
Author(s):  
Jian Xiang Yu ◽  
Tai Qi Liu

Microencapsulated phase change materials were achieved by solvent evaporation in this article, using polymethylmethacrylate as capsule’s shell and inorganic salt CaCl2•6H2O as capsule’s core. the effects of emulsion concentration and different ratio of core and shell to the microencapsulated phase change materials were discussed. The phase change material were added to the interior wall paints and its properties were characterized. The results showed that its enthalpy content will be different with the microcapsules and different storage time.

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8097-8103 ◽  
Author(s):  
Wenbin Wang ◽  
Huimin Cao ◽  
Jingyi Liu ◽  
Shifang Jia ◽  
Lin Ma ◽  
...  

Phase change energy storage wood (PCESW) was prepared by using microencapsulated phase change materials (MicroPCM) as thermal energy storage (TES) materials and wood as the matrix.


Soft Matter ◽  
2017 ◽  
Vol 13 (42) ◽  
pp. 7760-7770 ◽  
Author(s):  
Avinash Tiwari ◽  
Sergey N. Shubin ◽  
Ben Alcock ◽  
Alexander B. Freidin ◽  
Brede Thorkildsen ◽  
...  

The feasibility of microencapsulated phase change material (MEPCM) as filler in a rubber sealing material to improve sealing under transient cooling (in a so-called blowdown scenario) is investigated here.


RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7238-7249 ◽  
Author(s):  
Chenzhen Liu ◽  
Cui Wang ◽  
Yimin Li ◽  
Zhonghao Rao

Microencapsulated phase change materials (MicroPCM) were successfully fabricated by encapsulation of sodium thiosulfate pentahydrate (SoTP) as core with silica shell using sol–gel method.


Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3033
Author(s):  
Anastasia Stamatiou ◽  
Lukas Müller ◽  
Roger Zimmermann ◽  
Jamie Hillis ◽  
David Oliver ◽  
...  

Latent heat storage units for refrigeration processes are promising as alternatives to water/glycol-based storage due to their significantly higher energy densities, which would lead to more compact and potentially more cost-effective storages. In this study, important thermophysical properties of five phase change material (PCM) candidates are determined in the temperature range between −22 and −35 °C and their compatibility with relevant metals and polymers is investigated. The goal is to complement existing scattered information in literature and to apply a consistent testing methodology to all PCMs, to enable a more reliable comparison between them. More specifically, the enthalpy of fusion, melting point, density, compatibility with aluminum, copper, polyethylene (PE), polypropylene (PP), neoprene and butyl rubber, are experimentally determined for 1-heptanol, n-decane, propionic acid, NaCl/water mixtures, and Al(NO3)3/water mixtures. The results of the investigations reveal individual strengths and weaknesses of the five candidates. Further, 23.3 wt.% NaCl in water stands out for its very high volumetric energy density and n-decane follows with a lower energy density but better compatibility with surrounding materials and supercooling performance. The importance of using consistent methodologies to determine thermophysical properties when the goal is to compare PCM performance is highlighted.


Author(s):  
Ali Deriszadeh ◽  
Filippo de Monte ◽  
Marco Villani

Abstract This study investigates the cooling performance of a passive cooling system for electric motor cooling applications. The metal-based phase change materials are used for cooling the motor and preventing its temperature rise. As compared to oil-based phase change materials, these materials have a higher melting point and thermal conductivity. The flow field and transient heat conduction are simulated using the finite volume method. The accuracy of numerical values obtained from the simulation of the phase change materials is validated. The sensitivity of the numerical results to the number of computational elements and time step value is assessed. The main goal of adopting the phase change material based passive cooling system is to maintain the operational motor temperature in the allowed range for applications with high and repetitive peak power demands such as electric vehicles by using phase change materials in cooling channels twisted around the motor. Moreover, this study investigates the effect of the phase change material container arrangement on the cooling performance of the under study cooling system.


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